Specification:Product Name: Negative Ion Hair Straightening BrushModel: 701DRated Power: 25WVoltage: 100-240VSize: 235*28*38mmWeight: 258gTemperature: 140-220℃Features:1.Portable & Lightweight: This comb is just normal hair comb size and only 258g, very light and portable for travel or home use.2. 30 Seconds Fast Heating: It only takes 30 seconds to get heating and save your time.3. MCH Metal Ceramic Heating Body: MCH metal ceramic heating body heats fast,stably, effectively,and it has a fast thermal compensation4. Negative Ion Hair Care: Three holes will emit negative ion to moisturize the hair, help close the hair scales, increase hair luster and improve the problem of split ends5. 30 Minutes Auto Shutdown: 30 minutes auto shutdown function is designed to avoid using it for too long or forgetting to turn it off after using.6. Anti Scald Protective Teeth: Around the heating parts are protective teeth so that you can use it at ease without worrying about skin scald.Using Methods:1. Plug the cord and press the power button to turn it on.2. Press power button once to adjust temperature.3. Green light is 140℃ ,orange light is 180℃,red light is 220℃.4. Temperature is locked after 15 seconds,fast press button twice to unlock to select other temperature.5. Grab & straighten hair end with one hand. Slowly comb hair from up till down and stop at each part for one second . Note:Please comb hair with small amount each time.*Comb hair first, use together with essential oil or nutrient hair protector for better hair care.*If you want it to last long, you must use it with styling water and softenerPackage included:1 x Hair Straightening Comb1 x User Manual